Differences in IE6 SP1 and SP2 reading xml files

This might be more of a question for the IE crowd, but for some reason,
when I load an xml file simply to look at in IE to get a better view of
the file, the file in IE 6 SP1 looks different from IE 6 SP2. SP2
seems to show additional fields in a tag.
Is there something about the XML parsers in SP2 that would cause this
problem?

If this is the wrong place to ask this question please let me know
where is a better place.

Thanks